The gene for male-pattern body hair is HHA7. There's a little palindrome of DNA (AGAACA) called an Androgen Response Element! (ARE.) Each AR has a single arm on it, which latches onto only that palindrome. With both their arms, they clamp down on the ARE and snap tight. The AR's other head is a handle for RNA polymerase, which kicks off making the gene south of the ARE into a protein. The AR flips a switch, the HHA7 keratin is made, and if ur genes said body hair, then you will have body hair.Asking because I have an unsually large amount of body hair and wondering if finasteride plays a role.
I also have borderline high testosterone, not sure how finasteride ties in with that.